Biology Chapters 1 and 8

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Across
  1. 5. These kinds of tumors do not spread.
  2. 6. Organisms with __________ cells are unicellular and microscopic.
  3. 7. What is the basic unit of matter?
  4. 11. _________ cells have pairs of homologous chromosomes.
  5. 12. A scientific approach that explains nature through the proposing and testing of hypotheses.
  6. 14. Trisomy 21 causes _____ __________.
  7. 16. Haploid cells have one set of chromosomes, which are ________.
  8. 17. The biochemical units of heredity that make up the chromosomes.
  9. 18. These proteins help make up chromatin.
  10. 19. Chromatids are joined together at the ___________.
Down
  1. 1. The __________ of evolution says humans evolved from apes.
  2. 2. Prokaryotic cells divide through ______ _________.
  3. 3. Chromosomal abnormalities can be detected through a ___________.
  4. 4. If you created a possible explanation for a set of observations, it would be a ________.
  5. 8. What kind of experiment did Francesco Redi use to disprove spontaneous generation?
  6. 9. Animals, protists, plants, and fungi have these kinds of cells.
  7. 10. Nondisjunction is when the chromosomes fail to __________.
  8. 13. a typical human cell has two sets of __________.
  9. 15. Our _____ contains the information that determines inherited characteristics.
  10. 20. ________ only makes up 10% of the cell division process.